We look at the division of 14877212 by 813 
The aim is to understand the frequency of 813 in 14877212.

Moving on to step 1:
The number 813 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Include the next digit (4) from the dividend after 1, then repeat: 14 / 813

On to step 2:
When dividing 14 by 813, we get 0 with a remainder of 14.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 14, we end up with 14.
Take the next digit (8) from the dividend and append it to 14, then repeat: 148 / 813

Step 3:
813 goes into 148 0 times with a remainder of 148.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 148, we get 148.
Fetch the next digit (7) from the dividend, attach it to 148 and continue: 1487 / 813

Advancing to step 4:
813 can be fit into 1487 1 times, resulting in a remainder of 674.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 674 after subtracting 813 from 1487.
Fetch the next digit (7) from the dividend, attach it to 674 and continue: 6747 / 813

On to step 5:
813 can be fit into 6747 8 times, resulting in a remainder of 243.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Subtracting 6504 from 6747 leaves us with 243.
Grab the next digit (2) from the dividend, add it to 243, then carry on: 2432 / 813

On to step 6:
If we divide 2432 by 813, we get 2 and a remainder of 806.
The number 2 becomes the next digit in our result. 
Result so far: 182.0
If we subtract 1626 from 2432, we get 806.
Append the next digit (1) from the dividend to 806 and continue with: 8061 / 813

On to step 7:
If we divide 8061 by 813, we get 9 and a remainder of 744.
Write down 9 as next digit of the result. 
Result so far: 1829.0
The remainder is 744 after subtracting 7317 from 8061.
Include the next digit (2) from the dividend after 744, then repeat: 7442 / 813

On to step 8:
813 can be fit into 7442 9 times, resulting in a remainder of 125.
Put 9 as the next digit of the answer. 
Result so far: 18299.0
The remainder is 125 after subtracting 7317 from 7442.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Advancing to step 9:
The number 813 fits into 1250 1 times, leaving a remainder of 437.
The number 1 becomes the next digit in our result. 
Result so far: 18299.1
Subtracting 813 from 1250 leaves us with 437.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4370, and continue the process.

Step 10:
813 can be fit into 4370 5 times, resulting in a remainder of 305.
The next digit of our result is 5. 
Result so far: 18299.15
Subtract 4065 from 4370 to get 305.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3050, and continue the process.

Step 11:
If we divide 3050 by 813, we get 3 and a remainder of 611.
Write down 3 as next digit of the result. 
Result so far: 18299.153
Subtract 2439 from 3050 to get 611.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6110, and continue the process.

Let's proceed to step 12:
When dividing 6110 by 813, we get 7 with a remainder of 419.
Record the quotient 7 as the next digit in the result. 
Result so far: 18299.1537
Subtract 5691 from 6110 to get 419.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4190, and continue the process.

Step 13:
813 can be fit into 4190 5 times, resulting in a remainder of 125.
The number 5 becomes the next digit in our result. 
Result so far: 18299.15375
If we take 4065 away from 4190, we end up with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Going ahead to step 14:
If we divide 1250 by 813, we get 1 and a remainder of 437.
The next digit of our result is 1. 
Result so far: 18299.153751
If we take 813 away from 1250, we end up with 437.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4370, and continue the process.

Advancing to step 15:
813 goes into 4370 5 times with a remainder of 305.
The number 5 becomes the next digit in our result. 
Result so far: 18299.1537515
Subtracting 4065 from 4370 leaves us with 305.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3050, and continue the process.

Going ahead to step 16:
When dividing 3050 by 813, we get 3 with a remainder of 611.
Record the quotient 3 as the next digit in the result. 
Result so far: 18299.15375153
If we take 2439 away from 3050, we end up with 611.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6110, and continue the process.

After the division, we end up with 18299.15375153 and a remainder of 6.11e-07.